Answer:
The Mongol empire seemed to last a short time due to the fact that they were united only for a common goal, was further destabilized by plague & revolts from conquered countries.
Share information to the opposing side.
Cause harm to someone important.
Plant false information in the army's database.
Research by some scholars provides population estimates of the pre-contact Americas to be as high as 112 million in 1492, while others estimate the population to have been as low as eight million. In any case, the native population declined to less than six million by 1650.
I believe there is a book on the matter as well. Good luck. :)
The correct answer is C.
Warranties protect citizens from defective products that break when they shouldn't or stop working.
The south attacked it and it started the civil war